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Mott Insulators Without Symmetry Breaking

Dung-Hai Lee·Jon Magne Leinaas
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Abstract

We present theoretical models, in one and two space dimensions, that exhibit Mott insulating ground states at fractional occupations without any symmetry breaking. The Hamiltonians of these models are non-local in configuration space, but local in phase space.

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Dung-Hai Lee, Jon Magne Leinaas. 2003-09-10. Mott Insulators Without Symmetry Breaking. https://doi.org/10.1103/physrevlett.92.096401

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